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- W2294203611 abstract "Controlled doping of GaAs nanowires is crucial for the development of nanowire-based electronic and optoelectronic devices. Here, we present a noncontact method based on time-resolved terahertz photoconductivity for assessing n- and p-type doping efficiency in nanowires. Using this technique, we measure extrinsic electron and hole concentrations in excess of 1018 cm–3 for GaAs nanowires with n-type and p-type doped shells. Furthermore, we show that controlled doping can significantly increase the photoconductivity lifetime of GaAs nanowires by over an order of magnitude: from 0.13 ns in undoped nanowires to 3.8 and 2.5 ns in n-doped and p-doped nanowires, respectively. Thus, controlled doping can be used to reduce the effects of parasitic surface recombination in optoelectronic nanowire devices, which is promising for nanowire devices, such as solar cells and nanowire lasers." @default.
- W2294203611 created "2016-06-24" @default.
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- W2294203611 date "2016-03-14" @default.
- W2294203611 modified "2023-10-18" @default.
- W2294203611 title "Increased Photoconductivity Lifetime in GaAs Nanowires by Controlled n-Type and p-Type Doping" @default.
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- W2294203611 doi "https://doi.org/10.1021/acsnano.5b07579" @default.
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